I was bored earlier and bought two level 10 lootboxes, I spent 300 silver on both, and used left over keys from LOTRO's five year anniversary (they were bound keys).
A tome of vitality tier one and an unbound sturdy steel key came out of each (besides some other things).
Naturally I am looking to sell these for the most outrageous prices but I don't have any sign of their worth besides the auction hall. In any case, reply here if wanting to tell me what price could they be or send tells or something with offers to my characters... I'm usually on Wobbin or Gardis, if not, Toby Faircottons of the Fallohides!